SGC7901-DC融合细胞疫苗表型变化特点的研究

目的利用细胞融合技术,获取SGC7901胃癌细胞-DC融合细胞疫苗,并对融合细胞表型变化进行检测,了解其变化特点,为基于树突状细胞的融合疫苗研究及应用提供实验依据.方法利用聚乙二醇(PEG)诱导SGC7901胃癌细胞、树突状细胞融合,利用HAT、HT筛选培养系统对融合细胞进行筛选培养,获取纯净融合疫苗;应用直标荧光单克隆抗体进行染色,流式细胞仪检测细胞表型变化特点.结果SGC7901胃癌细胞-DC融合后,融合细胞具备独特的形态学特点,其细胞表面分子表达较亲代DC显著升高.结论SGC7901胃癌细胞-DC融合细胞疫苗具备独特形态学特点,其细胞表面分子表达较亲代DC显著升高,成为其具备更强生物学效应的细胞学基础.

The phenotype changes of SGC7901 gastric cancer cell-dendritic cell fusion vaccine

Objective To obtain SGC7901 gastric cancer cell-dendritic cell fusion vaccines by cell fusion technology. The phenotype changes of the fusion cells were detected to provide experimental data for the following research work. Methods The SGC7901 gastric cancer cells and dendritic cells were induced to be fused by PEG and the pure fusion cells were obtained by selective culture with the HAT/HT culture system. The phenotype changes of the fusion cells were detected by flow cytometer. Results The fusion cells had special morphologic characteristic and the phenotypes of the fusion cells were remarkably higher than the parental dendritic cells. Conclusion The SGC7901 gastric cancer cell-dendritic cell fusion cells kept special morphologic characteristic and their phenotypes were significantly higher than the parental dendritic cells, which may be the cellular base for their stronger biological effects.